The body was interred at a cemetery in Orange about 150 feet from where Kerrigan’s wife is buried.

Earlier, in the funeral home, the grieving Kerrigan had looked at the man in the casket and touched his hair, convinced he was looking at his son for the last time. “I didn’t know what my dead son was going to look like,” he said.

Then came the May 23 phone call from Shinker. Kerrigan’s son was standing on the patio.

It was unclear how coroner’s officials misidentified the body.

Doug Easton, an attorney hired by Kerrigan, said coroner’s officials apparently weren’t able to match the corpse’s fingerprints through a law enforcement database and instead identified Kerrigan by using an old driver’s license photo.

When the family told authorities he was alive, they tried the fingerprints again and on June 1 learned they matched someone else’s, Meikle said.

Easton said the coroner’s office provided the Kerrigan family with a name of that person, but the identification hasn’t been independently confirmed. The attorney said the family plans to sue, alleging authorities didn’t properly try to identify the body as Kerrigan’s son because he is homeless.

Sheriff’s Lt. Lane Lagaret, a spokesman for the coroner’s office, said the department extends regrets to the Kerrigan family “for any emotional stress caused as a result of this unfortunate incident.”

Lagaret said in a statement Saturday that the Orange County Sheriff’s Department is conducting an internal investigation into the mix-up and that all identification policies and procedures will be reviewed to ensure no misidentifications occur in the future.

The mistaken death identification led the federal government to stop disability payments for her brother, Meikle said. The family is working to restore them.

Meikle said her brother chose to return to living on the street and doesn’t understand how hard the mistake was on his family.

“We lived through our worst fear,” she said. “He was dead on the sidewalk. We buried him. Those feelings don’t go away.”